Creatures in the night

We were awakened early this morning (5:30 am) by the dogs barking like crazy. We crept out of the bedroom to find our basset hound, Cooper, in the front room with something trapped in the corner and then we heard a *hissing* sound. We immediately knew what it was - a possum. We've seen this little guy around the yard some and he and our cat, Polly, have seemed to have forged some sort of bond. While we were waiting for Animal Control to come, Polly went right up to th possum and started sniffing it and the thing never hissed or even moved! Of course, every time we got within 10 feet, it showed us its fangs and hissed like crazy. Thankfully, Animal Control got here shortly after 6 am and took the possum away. Michael will be installing a new dog door this weekend!